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May 29, 1923.

G; C. HOSCH SWIVELING SUPPORT Filed March .A, 1919 greeize Gi 550% Z I W1 -4 z s jiffy,

Patented May 29, 1923. g

. N T D 7ST:

' GREENE c. BOSCH, or sr. LOUIS, MISSOURI, AssrGNoR' TO "THEMnAsoREeinArH COMPANY, or s'r. roursivrrssoonr, A conrorm'rron.

, swrvnrme SUPPORT;

Application filed March 31,1919.- Seria11To.286,389, I v

To allwkomt'tmay concern: j 7

Be it known thatv I, GREENE O. Hoscn, a citizen of the UnitedStatesyresidinginihe city of StLouis and State'ofMissouri, have inventednew and useful Improvements in swiveling Supports, oi which thefollowing is a specification. 7

This invent on relates to a swiveling support. While the device isintended, tonbe 10 especially useful as'a supportfor avcounteraccessory, such as a measuring machine, it may also be used to provide aswiveling support for a machine or device for any purpose;

The general produce a swiveling support of very simple constructionwhich is soconstructed as to enable the device which it supports to'rotate about an axis and which will operate in such a way as to holdthedevice substantially fixed in a plurality of different positions; thisresult is accomplished bymeans operating automatically, that isto'saycby means whichwill operatesimply by the ro-- tation or swivelingmovement without-necessitating the direct manual-operation of 'anylocking member. v Further'objects of the inventionwilljappearhereinafter.

The invention conslsts in the generalcombination of parts set forth inthe appended claims, anddescribed in the following specification, all ofwhich contribute to produce a simple and eflicient swiveling support Inthe drawing'which fullyillustrates the preferredtembodiment of myinvention,

Fi re 1 is a plan-of the swiveling support, with dotted lines indicatingthe different positions which the rotary member of 40 the support mayassume;

Figure 2 is a front elevation of the device. with' dotted linesindicating the different positions the rotary member may assume;

Figure 3 is a vertical section taken through the device on the line 3.3of Figure 1;

Figure 4: is a perspective showinga detail of the means for holding therotaryv member in the different positions;-

Figure 5 is a perspective showing further details.

ing an enlarged neck 5 at its middle portion, 7, the lower endofsaidstud being mounted in a or studs 9' attached to the plate 8, (see Fig-,Referring more particularly to the parts," I i "1 represents a rotarymembervwhichis adapt: 2 ed. .to support any lns'trument or accessory,for example, a measuring instrument. Any

suit able means may be provided for secur 5 ing the instrument; forthispurpqse, atone side this rotary member or rotary head may b eprovided with a locking bolt 2 actuated I by a suitable lockingD'lGCllalilSIll; 2"?0011- trolled bye, suitable keyy; flhisbolt-ismounted so that it may proj ect above, the up- .per faced the head andthereby cooperate ithv three studs 3, to hold .thejinstrument' v s g 'inplace on the rotary member. object of-the invention is to- Iprovide-means carried bythe bracket member 6 and the rotary member whichwill normallyholdthe rotary member l yield p I, 11"

injgly against "rotation but-which will-per- I be a d i a SuffiQieitIrota'Qive 1 force be applied to it. .Thi i accomplished by providingoneof'these' members with a 7 plurality-=of recesses disposedcircumferentRI-llYQJIIOUIICl the axis of'rotation'andpro- V Y rotation, but will bedisengaged automati I V cally by the rotary, or swivel-movement.

In order to accomplish this and givefthe I structure rigidity, therotary memberv is pivotally mounted on a central stud 4, hava tubularhousing 7' which is' formed in-V tegral with a bracket member 6.. i

. The bracket member 6 may be'fin the of" a central post, having anelongated shoe 6 integral with it at'its lower portion, and this shoemay bepprovided with suitable means forguiding it along the counter. For'7 this purpose I provide a plate 8 carrying. rollers or wheels 10mounted on large pins ure 3.) These wheels 10 operateas means forguiding the bracket member along a suitable track attached to thecounter. The. stud inlay be held in place by suitspring-washer 20 whichseats able nuts l2 mounted on its lower end, which seat against a washer13 which lies against the lower end of the tubular housing 7.

I also provide means for yieldingly pressing the rotary member againstthe bracket member. F or this purpose I prefer to provide the upper endof the bracket member 6 witlia wear-plate 14 and on this wearplate 14,there seats a corresponding wearplate 15 carried by the underside of therotary member 1. The rotarymember is pref erably formed with a chamber 1on its upper side, and in the bottom of this chamber, I secure socketmeans in the form of a socket-plate 16 which is secured to the rotarymember by suitable screws 16*. Seating on the socket-plate 16, I providedetent meansl'l in'the 'form of a collar which is secured to the stud 1by means of a pin 18, said pin passing into a diametrically placedopening ofthe stud, through a vertical elongated slot 19 in the side ofthe collar. By

reason of this slot it will be evident that an upward movement of thecollar 17 on the 'studwill be permitted. The means for actuallypressingthe rotary member 1 yieldingly against the bracket member 6, consists ofa on the upper face of the collar 17, the same being held in place by anut 21 which screws onto threads adjacent to the end of the stud. Thesocket plate 16 is provided with a plurality of" circuinfer'en'tiallydisposed recesses which are in the form of radially disposed grooves 22.With these grooves 22, a projection 23 on the underside of the collar 17co-operates.

Normally the projection 23 engages one of these grooves 22, or twodiametrically opposite grooves in case the projection 23 lies on bothsides of the axis of the collar 17, as in Figure 5. This holds ordetains the rotary member against rotation; However,

when it is desired to rotate the rotary mem- "ber in its swivelingmovement so as to hold it in a different position, it is simplynecessary to rotate it forcibly. This rotation causes the socket-plate16 to rotate under the collar 17 so that the projection 23 rides up onto the surface of the plate between the recesses. The yielding means 20operates to yield, and this upward movement of the collar is permittedby the slot 19. The rotation is continued until the projection 23 comesopposite the next adjacent recesses whereupon the vielding means orspring-washer 20 will "force the collar down and cause the projection 23to engage the recesses, in this way locking or detaining the rotarymember in a new position; in this way the recesses and the projectioncooperate to hold the rotary head in a plurality of different positions.

Although I have illustrated only four of the recesses 22, which is allthat would be required for the service stated, obviously there may be asmany of these recesses as desired,

where advisable, to adapt the device to special purposes. In the presentinstance it has only been considered necessary to provide for holdingthe swiveling head in four different positions.

It is understood that the embodiment of the invention described above isonly one of the embodiments my invention may take and I do not wish tobe limited in the practice of the invention, nor in my claims to theparticular embodiment set forth.

What I claim and desire to secure by Letters Patent is 1. In a swivelingsupport, the combination of a relatively fixed bracket member having apost, a. swivel-head supported on the upper end of the post, a pivotstud connecting the swivel-head and the post and rigidly secured to thepost, a socket-plateattached to theswivel-head and having a plurality ofrecesses on the face thereof circuin-' stud so as to rotate therewithandcapa-bleof a movementlongitudinally on the stud,

said collar having a projection seatin'g'o'n the said socket-plate toengage wit-h any of the recesses to hold the rotary head againstrotation, and aspring carried on the stud to force the collar againstthe socket-plate and permitting the collar to move away from thesocket-plate when said head is given a swiveling movement. 1

2. In a swiveling support, the: combination of a relatively fixedbracket member having a post, a swivel-head supported on the upper endof the post, having a chamber on its upper side, a pivot studconnectingthe swivel-head and the post and rigidly secured to the post, a socketplate attached to the swivel-head in the bottom of said chamher andhaving a plurality of recesses on the face thereof circumferentiallydisposed about the axis of said stud, a collar on said stud connected tothe stud so as to rotate therewith and capable of a limited upwardmovement on the stud, said. collar having a projection seating on saidsocket-plate to engage with any of said recesses to hold said rotaryhead against rotation, and a. spring. above the collar andiorclng thesame down 7 to the swivel-head in the bottom of'said chamber and havinga plurality of recesses on the face thereof circumferentially disposedabout the axis of said stud, a collar on said stud connected to the studso as to lar to move upwardly when said head is rotate therewith andcapable of a limited upgiven a swiveling movement, and means 'carwardmovement on the stud, said collar havried on the upper face of the headfor securing a projection seating on said socket-plate ing a counteraccessory to theswivel head. I

to engage with any of said recesses to hold n testimony whereof, I havehereunto set said rotary head against rotation, a spring my hand. 1 f iabove the collar and forcing the same down I onto the socket-plate andpermitting the col- GREENE C. HOSCH.

